The first chemoselective tandem acylation of the Blaise reaction intermediate: a novel method for the synthesis of α-acyl-β-enamino esters, key intermediate for pyrazoles
Synthesis of β-enaminodicarbonyl derivatives in the titanium(<scp>iv</scp>) chloride-promoted reactions of β-dicarbonyl compounds with nitriles
作者:Shuchen Pei、Chenchen Xue、Li Hai、Yong Wu
DOI:10.1039/c4ra05100a
日期:——
Titanium(IV) chloride selectively promoted the nucleophilic attack of ethyl acetoacetate with nitriles to give enaminoketoesters, which were valuable intermediates for the syntheses of 2,3,4-substituted heterocyclics. Moreover a plausible mechanism for this transformation was given.